The Honourable Sir Mark O'Regan KNZM

Justice Mark O'Regan graduated from the Victoria University of Wellington in 1977. He was admitted as a barrister and solicitor of the High Court in 1977 and became a partner with the firm Chapman Tripp in 1984. He became a judge of the High Court in 2001 and a judge of the Court of Appeal in January 2004. Justice O'Regan was President of the Court of Appeal from 1 July 2010 to August 2014. He was appointed a Supreme Court Judge effective 1 September 2014.

Following retirement in November 2023 Justice O'Regan was appointed an Acting Judge of the Supreme Court. The acting period is from 1 February 2024 until 31 January 2026 and he will sit in the Supreme Court as required.